a) jls view not work (however, converting to jls works)
b) convert from flif is erroneous. I compare it using the sheme to convert image formats: raw1 -> png (using IrfanView) -> flif (using flif reference implementation) -> raw2 (using IrfanView) and raw1 is different from raw2. But when the scheme is raw1 -> png (using IrfanView) -> flif (using flif reference implementation) -> png (using flif reference implementation) -> raw2 (using IrfanView) , in that case raw1 = raw2.
c) convert to flif is absent at all